diff --git a/doc/script_commands.txt b/doc/script_commands.txt
index 2696bd786fd..0368b48e0cb 100644
--- a/doc/script_commands.txt
+++ b/doc/script_commands.txt
@@ -6309,6 +6309,10 @@ it just removes non-permanent script.
 Enable the player to plagiarize specific skills that are copyable.
 Return 1 on success, 0 otherwise.
 
+Note:
+ - Plagiarism only able to copy skill while SC_PRESERVE is not active and skill is copyable by Plagiarism.
+ - Reproduce can copy skill if SC__REPRODUCE is active and the skill is copyable by Reproduce.
+
 ---------------------------------------
 
 *plagiarizeskillreset <flag>;
diff --git a/src/map/script.cpp b/src/map/script.cpp
index 989e21b763e..b96265a8b0a 100644
--- a/src/map/script.cpp
+++ b/src/map/script.cpp
@@ -10191,7 +10191,7 @@ BUILDIN_FUNC(plagiarizeskillreset)
 {
 	TBL_PC *sd;
 
-	if (!script_rid2sd(sd))
+	if (script_rid2sd(sd))
 		script_pushint(st, pc_skill_plagiarism_reset(*sd, script_getnum(st, 2)));
 
 	return SCRIPT_CMD_SUCCESS;